... great part, Microsoft s decision to provide more complete support for window functions in SQL Server 2012 is thanks to the ef-forts of SQL Server MVPs and, more generally, the SQL Server community. ... customers, Microsoft decided to continue investing in window functions extensions in SQL Server 2012. Today, when I talk to customers about new language functionality in SQL Server 2012, I always ... engine of Microsoft SQL Server 2012; hence, all editions of the product support this feature. To run the code samples in this book, you need access to an instance of the SQL Server 2012 database...